WO2018028324A1 - Composition de désherbage présentant des effets synergiques - Google Patents

Composition de désherbage présentant des effets synergiques Download PDF

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Publication number
WO2018028324A1
WO2018028324A1 PCT/CN2017/090450 CN2017090450W WO2018028324A1 WO 2018028324 A1 WO2018028324 A1 WO 2018028324A1 CN 2017090450 W CN2017090450 W CN 2017090450W WO 2018028324 A1 WO2018028324 A1 WO 2018028324A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxazolamide
active ingredient
herbicidal composition
composition
composition according
Prior art date
Application number
PCT/CN2017/090450
Other languages
English (en)
Chinese (zh)
Inventor
仲汉根
季自华
季红进
花伟
Original Assignee
江苏辉丰农化股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏辉丰农化股份有限公司 filed Critical 江苏辉丰农化股份有限公司
Publication of WO2018028324A1 publication Critical patent/WO2018028324A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
    • A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles

Definitions

  • the invention belongs to the field of agricultural plant protection, and in particular relates to a herbicidal composition with improved properties.
  • the active ingredient diflufenican is a carotenoid biosynthesis inhibitor. Causes chlorophyll destruction and cell rupture, and plant death.
  • Pilofenapamide is an amide herbicide that is applied before and after weed germination to form an anti-leaching soil layer on the soil surface and to maintain activity throughout the growing period of the crop.
  • the penicillin can inhibit the carotenoid biosynthesis, and the content of carotenoids in the weed plants of the absorption agent decreases, causing the chlorophyll to be destroyed, and the cell membrane
  • the worm breaks the weeds show that the young shoots are discolored or white, and finally the whole plant wilted and died.
  • the active ingredient memifenap is an aryloxyphenoxypropionate herbicide. Its mechanism of action is to inhibit acetyl-CoA carboxylase, and the active ingredient needs to reach the target in the plant to exert the herbicidal effect.
  • the solvent and surfactant will act to soften the foliar layer and open the stomata of the plant, respectively, allowing the active ingredient to enter the plant.
  • the sensitive weeds showed green leaves and inhibited growth. Some weeds appeared dry and even died 2 weeks after application.
  • the purpose of the invention is to screen the herbicide containing two different weeding principles for the resistance of the herbicide in practical application and the problem of soil residue, so as to improve the control effect of the herbicide, delay the generation of the resistance, and reduce the application amount. Reduce the cost of prevention.
  • Another object of the present invention is to provide an application of the above composition for controlling weeds in the agricultural field.
  • the object of the invention can be achieved by the following measures:
  • the present invention provides a synergistic herbicidal composition
  • a synergistic herbicidal composition comprising active ingredients A and B, active ingredient A being diflufenic acid, and active ingredient B being oxazolamide.
  • the active ingredient of the composition of the present invention may contain only A and B, and may further contain other active ingredients without affecting the overall performance of the composition.
  • the weight ratio of the active ingredient of the herbicidal composition of the present invention to pyridoxal and oxazolamide is from 1:0.03 to 30.
  • the weight ratio of the active ingredient of the herbicidal composition of the present invention to diflufenic acid and oxazolamide is from 1:0.05 to 20.
  • the weight ratio of the active ingredient of the herbicidal composition of the present invention to pyridoxal and oxazolamide is from 1:0.1 to 10.
  • the weight ratio between the two components of A and B can be arbitrarily adjusted within the range of the following ratios: 1: 0.03, 1: 0.04, 1: 0.05, 1: 0.06, 1: 0.07, 1:0.08, 1:0.09, 1:0.1, 1:0.2, 1:0.3, 1:0.4, 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:12, 1:13, 1: 14, 1:15, 1:16, 1:17, 1:18, 1:19, 1:20, 1:21, 1:22, 1:23, 1:24, 1:25, 1:26, 1:27, 1:28, 1:29, 1:30, it is also possible to select within the range of any two of the above ratios, which can be understood as a weight ratio or a molar ratio.
  • composition of the present invention can be formulated into a pesticide-acceptable dosage form together with an active ingredient and an agrochemical adjuvant.
  • the mass of the active ingredient in the composition of the present invention may be from 2 to 95%, preferably from 5 to 80%.
  • a carrier, an adjuvant and/or a surfactant may be included in the composition of the present invention.
  • Common auxiliaries can be mixed during the application.
  • Suitable auxiliaries may be solid or liquid, they are usually materials commonly used in the processing of dosage forms, such as natural or regenerated minerals, solvents, dispersants, wetting agents, adhesives, thickeners, binders or fertilizers. .
  • the method of application of the compositions of the invention comprises the use of the compositions of the invention for aerial parts of plants, in particular leaves or foliage.
  • the frequency of administration and the amount administered will depend on the biological and climatic conditions of the pathogen.
  • the plant growth site such as rice fields, may be wetted with a liquid formulation of the composition, or the composition may be applied to the soil in solid form, such as in the form of granules (soil application), the composition may be passed from the soil to the plant through the roots of the plant. In vivo (systemic action).
  • compositions may be applied only with the active ingredient (also known as the active ingredient), or with additives or The adjuvants are used in combination, and thus the composition of the present invention can be prepared into various dosage forms such as wettable powders, suspending agents, dispersible oil suspensions, aqueous emulsions, emulsifiable concentrates, water-dispersible granules and the like.
  • the compositions may be applied by spraying, misting, dusting, spreading or pouring, and the like.
  • composition of the present invention can be prepared into various dosage forms by a known method, for example, the active ingredient and an auxiliary agent such as a solvent, a solid carrier, and if necessary, can be uniformly mixed with a surfactant and ground to prepare a desired form.
  • an auxiliary agent such as a solvent, a solid carrier, and if necessary, can be uniformly mixed with a surfactant and ground to prepare a desired form.
  • the above solvent may be selected from aromatic hydrocarbons, preferably containing from 8 to 12 carbon atoms, such as a mixture of xylenes or substituted benzenes, phthalates such as dibutyl phthalate or dicaprylic acid, aliphatic hydrocarbons such as rings.
  • aromatic hydrocarbons preferably containing from 8 to 12 carbon atoms, such as a mixture of xylenes or substituted benzenes, phthalates such as dibutyl phthalate or dicaprylic acid, aliphatic hydrocarbons such as rings.
  • Alkenes or paraffins, alcohols and glycols and their ethers and esters such as ethanol, ethylene glycol, ethylene glycol monomethyl
  • ketones such as cyclohexanone
  • highly polar solvents such as N-methyl-2 Pyrrolidone, dimethyl sulfoxide or dimethylformamide
  • vegetable or vegetable oils such as soybean oil.
  • the above solid carriers are typically natural mineral fillers such as talc, kaolin, montmorillonite or activated clay.
  • a highly dispersible silicic acid or a highly dispersible adsorbent polymer carrier such as a particulate adsorbent carrier or a non-adsorbing carrier, and a suitable particulate adsorbent carrier is porous, such as pumice, bentonite or Bentonite; a suitable non-adsorbing carrier such as calcite or sand.
  • a large amount of pre-granulated materials of inorganic or organic nature can be used as a carrier, in particular dolomite.
  • Suitable surfactants are lignosulfonic acid, naphthalenesulfonic acid, phenolsulfonic acid, alkaline earth metal or amine salts, alkylarylsulfonates, alkyl groups Sulfates, alkyl sulfonates, fatty alcohol sulphates, fatty acids and sulfated fatty alcohol glycol ethers, as well as condensates of sulfonated naphthalene and naphthalene derivatives with formaldehyde, naphthalene or naphthalene sulfonic acid with phenol and formaldehyde Condensate, polyoxyethylene octyl phenyl ether, ethoxylated isooctyl phenol, octyl phenol, nonyl phenol, alkyl aryl polyglycol ether, tributyl benzene poly
  • the two active ingredients in the compositions of the present invention exhibit synergistic effects, the activity of which is more pronounced than the expected sum of activity using a single compound, and the individual activity of a single compound.
  • the synergistic effect is manifested by allowing for a reduced application rate, a broader herbicidal control profile, quicker effect, longer lasting control effect, better control of weeds by only one or a few applications, and widening of possible application intervals . These characteristics are particularly needed to control weed control practices.
  • the herbicidal composition of the invention can be applied to the control of crop weeds in the agricultural field, in particular to control rain long flower, goosegrass, crabgrass, valerian, thousand gold or valerian.
  • compositions of the present invention are mainly as follows: 1. Due to the two single doses of the present composition The chemical structure is very different, the mechanism of action is completely different, there is no cross-resistance, and the resistance problem caused by the separate use of two single agents can be delayed; 2. The composition of the invention has good safety and control effect on crops. It has been proved by experiments that the herbicide composition of the invention has stable chemical properties, remarkable synergistic effect, and exhibits obvious synergistic effect and complementary effect on the control object.
  • the active ingredient flufenic acid and the active ingredient oxazolamide are mixed well with various auxiliaries and fillers, and pulverized by an ultrafine pulverizer to obtain a wettable powder.
  • Example 2 42% flufenacetate oxazolamide wettable powder
  • the active ingredient flufenic acid and oxazolamide, auxiliary agent and filler are uniformly mixed according to the formula, pulverized into a wettable powder by air flow, and then added with a certain amount of water, mixed and extruded, granulated, and sieved by drying. A water dispersible granule product is obtained afterwards.
  • Example 4 11% flufenacetate oxazolamide water dispersible granules
  • Example 5 20% flufenacetate oxazolamide water dispersible granules
  • Example 6 31% flufenacetate oxazolamide water dispersible granules
  • the active ingredient pyripramine and oxazolamide, an emulsifier, an organic solvent and the like are uniformly mixed in a ratio of the formulation to obtain a finished product.
  • Example 8 11% flufenacetate oxazolamide emulsifiable concentrate
  • the disease index and control effect were calculated.
  • the control effect is converted into the probability value (y)
  • the concentration of the drug solution ( ⁇ g/ml) is converted into the logarithm value (x)
  • the virulence equation is calculated by the least squares method and the concentration EC50 is suppressed
  • the virulence index of the drug is calculated according to the method of Sun Yunpei. Grade Co-toxicity coefficient (CTC).
  • CTC Grade Co-toxicity coefficient
  • Measured virulence index (ATI) (standard drug EC50 / test drug EC50) * 100
  • Theoretical virulence index (TTI) A virulence index * Percentage of A in the mixture + B virulence index * Percentage of B in the mixture
  • CTC Co-toxicity coefficient [mixture measured virulence index (ATI) / mixed theory virulence index (TTI)] * 100
  • CTC ⁇ 80 the composition showed antagonism, 80 ⁇ CTC ⁇ 120, the composition showed an additive effect, CTC ⁇ 120, and the composition showed synergistic effect.

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne une composition de désherbage présentant des effets synergiques, la composition comprenant des ingrédients actifs de diflufénican et de métamifop avec un rapport pondéral de 1/0,03 à 30. Des tests d'efficacité montrent que la composition présente les caractéristiques avantageuses d'une forte complémentarité, d'un effet synergique évident, d'un spectre de destruction des mauvaises herbes étendu, d'une quantité d'application réduite, d'une période optimale d'application prolongée, d'une sécurité élevée pour les plantes cultivées, d'une pollution environnementale réduite et d'une compatibilité avec l'environnement élevée.
PCT/CN2017/090450 2016-08-08 2017-06-28 Composition de désherbage présentant des effets synergiques WO2018028324A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610640376.8A CN106259356B (zh) 2016-08-08 2016-08-08 具有增效作用的除草组合物
CN201610640376.8 2016-08-08

Publications (1)

Publication Number Publication Date
WO2018028324A1 true WO2018028324A1 (fr) 2018-02-15

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WO (1) WO2018028324A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106259356B (zh) * 2016-08-08 2019-03-12 江苏辉丰农化股份有限公司 具有增效作用的除草组合物
CN108338179A (zh) * 2017-08-07 2018-07-31 江苏辉丰农化股份有限公司 含有氟唑磺隆和噁唑酰草胺的除草组合物
CN108338174A (zh) * 2017-08-09 2018-07-31 江苏辉丰农化股份有限公司 含有噁唑酰草胺和氟噻草胺的除草组合物

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102027940A (zh) * 2009-09-28 2011-04-27 南京华洲药业有限公司 一种含吡氟草胺与精恶唑禾草灵的除草组合物及其应用
CN104663697A (zh) * 2015-03-19 2015-06-03 四川利尔作物科学有限公司 除草组合物及其应用
CN105104375A (zh) * 2015-08-14 2015-12-02 京博农化科技股份有限公司 一种含甘油的除草组合物
CN105284836A (zh) * 2015-11-30 2016-02-03 佛山市盈辉作物科学有限公司 一种含赤霉酸的除草剂组合物及其制备方法和应用
CN106259356A (zh) * 2016-08-08 2017-01-04 江苏辉丰农化股份有限公司 具有增效作用的除草组合物

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102326563B (zh) * 2011-07-12 2013-10-09 陕西美邦农药有限公司 一种含吡氟酰草胺与唑嘧磺草胺的除草组合物

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102027940A (zh) * 2009-09-28 2011-04-27 南京华洲药业有限公司 一种含吡氟草胺与精恶唑禾草灵的除草组合物及其应用
CN104663697A (zh) * 2015-03-19 2015-06-03 四川利尔作物科学有限公司 除草组合物及其应用
CN105104375A (zh) * 2015-08-14 2015-12-02 京博农化科技股份有限公司 一种含甘油的除草组合物
CN105284836A (zh) * 2015-11-30 2016-02-03 佛山市盈辉作物科学有限公司 一种含赤霉酸的除草剂组合物及其制备方法和应用
CN106259356A (zh) * 2016-08-08 2017-01-04 江苏辉丰农化股份有限公司 具有增效作用的除草组合物

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CN106259356B (zh) 2019-03-12
CN106259356A (zh) 2017-01-04

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